baber/WOPTO huggingface dataset:
Patent GB-831331-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: RHODES GEORGE WILLIAM
IPC: B29C33/12
Filed: 1956-04-03
Abstract: 831,331. Encasing electrical capacitors. HUNT (CAPACITORS) Ltd., A. H. March 26, 1957 [April 3, 1956], No. 10207/56. Class 87(2). In a method of moulding cases around capacitors which are assembled in batches in the lower mould block of a moulding press which has a number of mould cavities side by side along its length each to receive one of the capacitive units, the moulding material is introduced into the lower mould cavities while the units are temporarily supported at a level somewhat above their final positions, and then the units are lowered into their final positions as the upper mould block is brought down to close the mould. Before a batch of the capacitive units is brought to the moulding press, they are first assembled in a bench loading frame 11, Figs. 1 and 2, which comprises a rectangular lower plate 12 having a rectangular central opening 16 across which the capacitive units are arranged to lie side by side supported by their terminal wires which 44 pass through notches 18 between longitudinally upstanding ribs alongside the opening. The portions of the terminal wires which project beyond the notches are clamped between the lower plate 12 and an upper plate 13. Before loading, the lower plate 12 is placed over a spacer frame consisting of a base plate 21 to which is secured a channel-section member the sides 22 of which are notched and fit up through the retangular opening 16. The distance between the sides 22 is substantially equal to the length of the capacitive units which are thereby positioned axially and correctly spaced from the sides of the frame plate opening. The floors of the notches 18 are made to be higher at their inner ends than the surface on which the upper plate rests, the terminal wires thus being bent downwardly and kinked slightly at this point to prevent axial displacement. The moulding press, Fig. 5, has upper and lower mould blocks 32, 34 each having a series of mating'halfcylindrical cavities 33, 35. The lower mould block is surrounded by a horizontal spring mounted platform 37 upon which rests the loading frame carrying the capacitive units, which, at this stage, are somewhat above their final positions. Just before the mould closes by lowering of the upper mould block 34, spring-loaded plungers 40 on the upper mould base 30 engage platform 37 and move it down so that the units drop to their final positions in the mould. The downward movement of the platform is limited by plungers 40 abutting against the heads of fixed screws 41 which project from the lower mould base 27 into bores 42 through the platform.
Patent GB-1384354-A (GB)
Title: Torque wrench
IPC: B25B23/142
Filed: 1973-03-02
Abstract: 1384354 Torque wrenches CONSOLIDATED DEVICES Inc 2 March 1973 10251/73 Heading B3N A torque wrench comprises a lever arm A, said arm having a chamber extending therethrough; a resilient deflection beam B has one end secured to a head H which is unconstrained by arm A, whilst the other end is secured by means M to the arm; a member R of greater length than the beam is secured at one end to head H with the other end being connected by connector means O to indicator means D. The indicator means can take any form but as shown a shaft 31 carrying an indicator 33 is connected via a quadrant rack 35, a lever arm 36, elongate stem 50 and finger 51. In a modification member R has an extension piece that has lateral projections that extend through the upper and lower sides of arm A.
Patent GB-993835-A (GB)
Title: Improved fired basic refractory shapes
IPC: C04B35/44
Filed: 1964-03-11
Abstract: A basic refractory batch comprises, in parts by weight, 60 to 80 magnesia, 40 to 20 chrome ore, 0.5 to 5 of titania or a titania yielding compound, with a batch silica content of less than 5%. Lignin liquor is added to the batch which is pressed and fired.  A list of suitable titanium compounds is given.  Dead burned magnesia prepared as in Specification 926,148 is preferably used.
Patent GB-1211755-A (GB)
Title: Analog-to-digital conversion system
IPC: H03M1/00
Filed: 1968-03-04
Abstract: 1,211,755. Analogue/digital converters. WESTINGHOUSE ELECTRIC CORP. 4 March, 1968 [20 March, 1967], No. 10281/68. Heading G4H. In an analogue-to-digital converter, an analogue input signal is integrated for a time dependent on the period of a power waveform, the integrator 30 (Fig. 4) being discharged at a rate dependent on the integrating period so that noise caused by e.g. induction from nearby power lines is eliminated. In the embodiment described, control 10 initially opens a gate 20 for a time dependent on the period of the power waveform so that the integrator 30 is charged up, a gate 42 also being enabled for this time interval to pass clock pulses to a counter 46. The accumulated count is then transferred to a calibrate buffer 54 and digital/analogue converter 56, the output from which is fed via reference sampling gate 60 to discharge the integrator 30 at a rate which thus depends on the integration period. When the gate 60 is enabled the gate 42 is again enabled to pass pulses to counter 46 until the integrator 30 is discharged when a detector 44 closes the gate 42. The count in counter 46 is read out to computer 70.
Patent GB-1422418-A (GB)
Title: Appliance for the humane killing of poultry
IPC: A22B3/08
Filed: 1973-03-02
Abstract: 1422418 Killing poultry S MCCORMICK 2 March 1973 [2 March 1972] 10380/73 Heading AIM Appliance for killing poultry comprises an anvil plate 2 having a U-shaped recess 3 adapted to receive the neck of a bird; and a crushing lever 5 connected to the plate 2 by a pivot 4. In the position shown the recess 3 is unobstructed but the lever 5 may be moved to bridge the open end and further movement will reduce the size of the aperture until a set screw 7 abuts the edge 9. The set screw 7 is adjusted according to the type of poultry to be killed so that the lever closes upon the bird's neck so crushing a vertebra but not severing the head. The lever may be operated manually or by hydraulic or pneumatic means.
Patent GB-540079-A (GB)
Title: Improvements in or relating to appliances for musketry and like training
IPC: F41A33/00
Filed: 1939-03-27
Abstract: 540,079. Dummy rifles for teaching shooting. SOCHACZEWSKI, S. March 27, 1939, No. 10416/41. Divided out of 539,291. [Class 119] A dummy rifle from which a spring- urged target-marking rod is projected when the trigger is pulled, as described in Specification 539,291, has a twopronged rod 1, one prong 2 being in the vertical plane of the rod and the other prong 2' at one side thereof. The two perforations of the target indicate whether the rifle was centred at the moment of firing. The prong 2' may have a flattened pointed end.
Patent GB-309994-A (GB)
Title: Improvements in shaft speed governors
IPC: G05D13/08
Filed: 1929-04-04
Abstract: 309,994. Bosch Akt.-Ges., R. April 19, 1928, [Convention date]. Centrifugal governors. - A centrifugal shaft governor suitable for controlling the ignition in an internal-combustion engine comprises weights f controlled by laminated springs secured to onehalf of a clutch a upon which driving gears are mounted. The contact of the springs with the supporting drum increases with the deflection until the weights finally engage the drum and protects them aaginst fracture. As the weights f move under centrifugal force, rollers on pins k carried thereby engage slots m in a part i connected to the shaft o of the magneto-ignition apparatus and effect an angular adjustment thereof to control the ignition.
Patent GB-933774-A (GB)
Title: Improvements relating to invertor oscillators
IPC: H02H7/122
Filed: 1960-03-24
Abstract: 933,774. Transistor oscillator circuits. GENERAL ELECTRIC CO. March 24, 1960 [April 30, 1959], No. 10439/60. Class 40 (6). A transistor inverter-oscillator is characterized by a means responsive to a reduction in alternating potential across the output transformers upon reversal of polarity of the D.C. supply source which adjusts the bias applied to the transistors, so as to limit the current taken by them to a safe value. Two transistors 12, 28 are cross-coupled from collector to base by resistors 20, 36, to form an inverter oscillator, and have a first winding 26 of a transformer connected between the two collectors. A second winding 42 contains a rectifier 43 and a relay coil 48, and a third winding 40 is connected between the base electrodes of the transistors and has a centre-tap connected to a contact 50 controlled by the relay. With the battery 10 correctly poled, the rectified A.C. output from winding 42 energizes relay coil 48, closing contact 50 to connect the centre point of winding 40 to the battery to provide the correct base bias and feed-back. A reversal of the polarity of the battery will cause oscillation to cease so that contact 50 opens, and the bias on the bases is determined by the resistors 20, 36, and can be adjusted to prevent overload of the transistors.
Patent GB-908470-A (GB)
Title: Improvements relating to brake controlling devices for railway braking apparatus
Inventor: SIMMONS ARTHUR WILLIAM
IPC: B60T13/66
Filed: 1958-04-02
Abstract: 908,470. Electropneumatic braking apparatus. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. April 2, 1959 [April 2, 1958], No. 10586/58. Addition to 779,923. Class 103 (1). A brake-controlling device for electropneumatic railway braking apparatus, includes a mercury tube retardation controller T, M having a contact CS constantly immersed in mercury and connected to battery B, a blowdown contact CB and contacts CA, CH connected to relays RA, RH via drum contacts DC, the relays being effective to connect application and holding wires WA, WH to battery B. The device is shown in Fig. 1, in the release position with relays RA, RH de-energized and contact CB is positioned to correspond to a predetermined high rate of retardation with the tube untilted. A circuit between wire WH and battery B includes normally closed contacts of relay RB and a pressure switch PS held open by normal brake pipe pressure. When brake application is initiated pneumatically and independantly of the driver, pressure builds up in the brake cylinder via triple valves, loss of pressure in the brake pipe closes switch PS to energize wire WH to close the holding valve to prevent pressure release via the blow down valve. Should retardation exceed a predetermined rate, the mercury engages contact CB to energize relay RB to disconnect wire WH from battery B and allow the holding valve to open and dissipate pressure until retardation falls below the predetermined rate. In Fig. 2 of the Provisional Specification an additional contact CHM is included below contact CB and switch PS is omitted. As soon as a small retardation is produced the mercury engages CHM to energize relay RH to connect wire WH to the battery and so close the holding valve, contact CB being operative as before. The quantity of mercury need not be so accurately measured in apparatus of Fig. 3 of the Provisional Specification (not shown), since contact CB is arranged between contacts CS and CH and relay RB operates in the reverse manner. A pressure switch PS may be included in the apparatus of Figs. 2 and 3 (not shown), and the drum contactor DC may be replaced by a pressure switch. Specification 779,923 is referred to.
Patent GB-459588-A (GB)
Title: Improvements in manures for the cultivation of mushrooms
IPC: C05F11/00
Filed: 1935-04-05
Abstract: A manure for the cultivation of mushrooms is obtained by submitting starch-containing substances to a treatment to convert the starch into maltose, the maltose-containing substance being used as a manure in the presence of a substance which prevents alcoholic fermentation. The maltose may be used in a crystallized state or as a syrup in admixture with natural dung, urea or substances containing urea, e.g. urine.  According to an example, malt wort, urea and straw are mixed together and this mixture is laid in successive heaps and is regularly wetted.
Patent GB-106642-A (GB)
IPC: C10C1/06
Abstract: 106,642. Ball, F. L., and Hiller, H. K. May 16, 1916. Progressive evaporators; film evaporators.-An apparatus for evaporating liquids by furnace heat without priming or frothing comprises vertical plates F, Fig. 1, forming a zigzag path for the liquid, together with " heat dispersers " G loosely inserted in the channels formed by the plates F. The " heat-dispersers," shown in vertical section in Fig. 4, are hollow and are formed with a wide opening 3 at the base, through which the liquid enters, and with a narrow throat 5, from which the liquid is discharged on to a table 6 over which it flows in a thin film. A narrow relief opening 4 is also formed in the base. The liquid is thus, during its passage through the apparatus, alternately heated and spread in thin films. The apparatus is used for hydrating tar, debenzolizing oil, and distilling ammonia.
Patent GB-768768-A (GB)
Title: Method and apparatus for producing molten silicates
IPC: C03B5/20
Filed: 1955-04-13
Abstract: 768,768. Glass manufacture. PAXTON, E. W.. and FULTZ. P., [trading as STRATABAR PROCESS CO.]. April 13, 1955 [April 23. 1954], No. 10711/55. Class 56 [Also in Group XI] In a glass melting and refining furnace, the passageway between the glass melting compartment and the glass refining compartment is provided with auxiliary heaters, at the entrance thereof, whereby the flow of seed bearing glass from the melting compartment to the working compartment is reduced. It is stated that, in furnaces of this type heated by surface combustion, a spring-like effect 45 is observable on the surface of the glass in the melting compartment, the glass flowing from this spring area towards the bridge above the submerged passageway between the compartments, and in greater quantity from the spring towards the charging position of the furnace. This latter stream flows beneath the freshly charged material 42 and returns over the floor of the furnace towards and through the passage between the compartments. If the output of the furnace is increased, the flow rate is correspondingly increased and there is a tendency for seed bearing glass to come down from the top layers of the glass in the melting tank and pass through the said passage. The provision of the auxiliary heating means at the entrance of the passage provides a counter-convection effect which inhibits the downward flow of the seed bearing glass, so that the withdrawal rate of glass from the furnace may be increased without bringing seed bearing glass into the working compartment. The heating is preferably effected by electrodes which are kept down into the furnace bottom level, and to this effect the furnace is recessed to hold the electrodes. The electrodes may be of T-shape the upper horizontal span of the T being housed in a corresponding recess in the furnace bottom. Alternatively, the passageway between the compartment may itself be recessed to accommodate the two electrodes which themselves do not protrude above the general level of the passage bottom. It is stated that, as the hot seed bearing glass is inhibited from descending over the front face of the bridge, erosion from cause is obviated.
Patent GB-473648-A (GB)
Title: Magnetic circuit and construction thereof
IPC: H04R9/02
Filed: 1936-04-14
Abstract: 473,648. Magnets. CONTINENTAL MOTORS CORPORATION. April 14, 1936, No. 10741. Convention date, April 13, 1935. [Class 35] [Also in Group XXXIX] In a permanent magnet assembly in which a composite centre polepiece comprising a permanent magnet portion and a polepiece portion has one end associated with a portion of magnetic material and the other end associated with an opening in a parallel portion of magnetic-material to provide an annular gap, the permanent magnet portion has a diameter greater than its length and the polepiece portion associated with the gap is of substantially homogeneous structure throughout its length; is of varying cross-section and has a plane under-surface, contacting with the magnet and of cross-sectional area equal to that of the magnet at the plane of contact. As shown in Fig. 1, the polepiece portion 7 is secured to the magnet portion 6 by a bolt 8 passing through a yoke member 3 of soft iron to which is secured a pole-plate 2. A circular opening in the pole-plate in conjunction with the smaller end of the polepiece 7 forms a gap for a moving coil 9<1>. The centre polepiece 6, 7 is centred by a brass ring 21 secured to the outer pole-plate 2. In a modified construction, Fig. 3, which forms the subject-matter of Specification 473,672, the permanent magnet portion 31 has a curved outer surface and the pole-plate 2 is secured to the yoke 3 by clamps 40. In a further modification, Fig. 4, the permanent magnet is formed by a central cylindrical magnet 34 and concentric magnet rings 33, 33<1>. The polepiece is secured to the permanent magnet by a sleeve 35 secured to the yoke 3 by rivets. In further modifications, Figs. 5, 6 (not shown), the permanent magnet is formed with concentric recesses parallel to its axis and the yoke and pole-plate are formed as a single U-shaped member respectively. The Specification as open to inspection under Sect. 91 includes a construction, Fig. 3 (Cancelled, not shown), in which the positions of the magnet and polepiece are reversed, i.e. the permanent magnet projects into the gap, and a further construction, Fig. 5 (Cancelled, not shown), in which the centre polepiece is constituted solely by a magnet member. In a further construction, Fig. 7 (Cancelled), the polepiece portion 7 and permanent magnet portion 36 are separately mounted between parallel plates 2, 3 of magnetic material, the polepiece member being centred relative to the gap by a ring 21 of non-magnetic material. This subject-matter does not appear in the Specification as accepted.
Patent GB-436381-A (GB)
Title: Improvements in or relating to mops and like cleaning apparatus
IPC: A47L13/46
Filed: 1934-04-10
Abstract: 436,381. Mops. AN TESCH AKTIEBOLAG, T. 29, Kungsgatan, Stockholm.-(Assignees of S÷derberg, G. E., and Andersson, F. ; Ludvika, Sweden) April 10, 1934, No. 10750. Convention date, April 10, 1933. [Class 19] Mop material A is doubled over an open ring 18 and held by an elastic holder 9 of wire through which the mop can be pressed to squeeze out water and whereby more or less of the mop may protrude for use. The holder 9 is doubled back as shown in Fig. 2, with ends 2 secured in a shaft 6. The hook member 18 is slotted and pivoted at 15 to a lever 11 itself pivoted at 15 to a handle 11. Movement of the lever 11 operates the hook 18 in or out of the ring 9.
Patent GB-579578-A (GB)
Title: Improvements relating to installations for serving meals in canteens and analogous establishments
IPC: A47F10/06
Filed: 1944-06-05
Abstract: 579,578. Serving meals. DIXON, E. K. PORTMAN-. June 5, 1944, No. 10764. [Class 116] [Also in Group XXX] Apparatus for serving meals in canteens &c. comprises a bain-marie table having a line of food containers 5, Fig. 4, provided on one or both sides with a track 6 for plates and a splash guard 7 to prevent premature soiling of the plates. The tracks 6 may be mobile and propelled by pedal-operated means and may be varied in width by a rail on one side of the track operated by a screw-threaded stem. At one end of the table, a plate lift 20, Fig. 5, in a heated compartment is adapted to raise a stack of plates 17 so that one at a time is raised to the level of the track 6. Stacks of plates are delivered to the lift by a conveyer comprising carriages 44. The lift is slidably mounted on two rack pillars 19, 19A, Fig. 7. The pillar 19 is fixed and adapted to hold the lift in any position to which it has been raised by means of a pawl 23. The pillar 19A is vertically slidable and is operated by a foot pedal 38 to raise the lift by means of a pawl 23A. When the lift has reached its topmost position, L-section posts 27 are raised by a lever 34 and rollers 32, and guided by inclined slots 30 to engage and release the pawls 23, 23A and the lift is free to fall on to rubber buffers 26, and to receive a further stack of plates from the conveyer. The carriages 44 of the conveyer comprise spaced ribs adapted to interfit with the bars of the lift 20 and the central rib has a lug 46 forming an abutment for the bottom plate of a stack. The carriages are joined by links 47 and run on an endless track 42. The track is moved by hand by means of a spring tooth engaging a carriage. Curved plates 16 limit the travel of a stack of plates. The containers 5, Fig. 4, are maintained hot by a water pan 4 heated by a gas burner 8 below which is a heated compartment 11.
Patent GB-350122-A (GB)
Title: Improvements in vaporising and mixing the charges supplied to internal combustion engines
IPC: F02M29/08
Filed: 1930-04-05
Abstract: 350,122. Mixing charge. RICHARDSON, F. H., Stockbridge House, Ulverston, Lancashire. April 5, 1930, No. 10852. [Class 7 (ii).] A charge mixing and atomizing device consists of a perforated tube 6 having an extension 6a secured by a metal strip 7 and radial projections 8 in the induction pipe 1, a wire spiral 9 being fixed to the end of the tube to oscillate under the influence of the engine suction. In the modified construction shown in Fig. 2, the tube 6 is secured by a metal tab 7a and a trough-like piece 10. An auxiliary perforated tube 11 is pivoted in the tube 6. In a further modification, Fig 4, the tube is formed as a hollow truncated cone and connected to the trough-like member 10a by extensions 10c which pass through slots in the cone and allow the cone to oscillate. A plate 12 catches any unvaporized fuel and conducts it to the engine cylinders. Projections may be provided on the trough-like member to assist the intermixing. In a further modification, the perforated tube and trough-like member may be replaced by longitudinally split cylindrical members, or by two perforated cones, one pivoted in the other.
Patent GB-692599-A (GB)
Title: Improvements in chemical balances
Inventor: MEIER JOHANN
IPC: G01G1/00
Filed: 1951-05-09
Abstract: 692,599. Weighing balances. METTLER, E., [trading as METTLER, FABRIK FUR ANALYSENWAAGEN, E.]. May 9, 1951, No. 10855/SI. Class 143. In a chemical balance a scale pan is supported above the beam and is stabilized by a counterbalance weight suspended therefrom and located beneath the beam. A plate 12 resting on a beam knife edge 10 supports the conical tips of a pair of pins 20 secured to a plate 24 which in turn supports the tips of a pair of pins 22, 23 secured to a pan support 13, thus the support 13 is.free to move universally about a pair of horizontal axes at right angles with one another. Suspended from support 13 by rods 14, 15, 16, 17 is a stabilizing counterweight 18, and to provide further stability, a yoke 34, from which is suspended another counterweight 32, is supported on plate 12 by a pair of pins 35, 36 which allow the weight 32 to swing in a plane parallel with the knife edge 10. A member 39 pressed outwardly from the weight 32 by a spring 40 engages the upper surface of weight 18 and damps relative movement between weights 18, 32; and a member 26 pressed outwardly from a sleeve 27 by a spring 28 is moved into engagement with the lower surface of weight 18, to damp movement thereof, when the sleeve is raised by a cam 30 against the action of a spring 29. When applied to an equi-armed balance the other pan is supported by a similar arrangement, but the invention is stated to be applicable also to balances having a fixed counterweight on one side of the beam fulcrum. Loose weight apparatus. In a modification (not shown) balance is attained by adding loose weights to the counterweight 32. Casings. A casing 3 which encloses the balance has apertures 4 through which the pan supports 13 project.